[Coco] OS9 Level 1 ver 2
robert.gault at worldnet.att.net
Thu Nov 1 22:17:58 EDT 2007
Chester A Patterson wrote:
> OS9 Level 1 Ver 2
> I was loosing sleep. I could not make a bootable disk using OS9Gen or
> Cobbler. I could only DECB backup the factory 35TSS disk.
> 1st made the equivalent of level 2 REL. The lev.1 version isn't a 87CD
> type module while lev.2 is.
> 2nd was making a handfull of bytes I found between modules OS9 and OS9p2
> This was quite a surprise.
> These are bytes are 01 D2 01 77 01 7D 01 83 01 84 01 88 01 83
> Merge a new boottrack.
> OS9Gen -t and all that.
> And BINGO! Boots every time.
> What those bytes do or why they are there is at the moment beyond me.
Those are vectors, which can be seen by looking at the Level1 source
code for NitrOS-9 on SourceForge.
Vectors fdb SWI3 SWI3
fdb SWI2 SWI2
fdb DUMMY FIRQ
fdb SVCIRQ IRQ
fdb SWI SWI
fdb DUMMY NMI
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